package com.aurora.file.service;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.aliyun.oss.model.GetObjectRequest;
import com.aurora.common.core.utils.uuid.UUID;
import com.aurora.file.config.OssConfig;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Primary;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.*;
import java.time.LocalDateTime;

@Primary
@Service
public class OssSysFileServiceImpl implements ISysFileService {
    private static OSS ossClient;
    @Autowired
    private OssConfig ossConfig;
    private String accessPre;
    @Override
    public String uploadFile(MultipartFile file) throws Exception {
        ossClient=new OSSClientBuilder()
                .build(ossConfig.getEndPoint(),
                        ossConfig.getAccessKeyId(),
                        ossConfig.getAccessKeySecret());
        accessPre = "https://"+ossConfig.getBucketName()+"."+ossConfig.getEndPoint()+"/";
        return uploadMultipartFile(ossConfig.getBucketName(),getOssFilePath(file.getOriginalFilename()),file);
    }
    /**
     * 上传 multipartFile 类型文件
     * @param bucketName
     * @param ossPath
     * @param multipartFile
     */
    public String uploadMultipartFile(String bucketName , String ossPath , MultipartFile multipartFile){
        InputStream inputStream = null;
        try {
            inputStream = multipartFile.getInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
        uploadFileInputStreamForBucket(bucketName, ossPath, inputStream);
        return accessPre+ossPath;
        //这是返回的图片路径，我们要用这个
//        return ossPath;
    }

    /**
     * 使用File上传PutObject上传文件 ** 程序默认使用次方法上传
     * @param bucketName 实例名称
     * @param ossPath oss存储路径
     * @param filePath 本地文件路径
     */
    public String uploadFileForBucket(String bucketName , String ossPath , String filePath) {
        // 创建PutObjectRequest对象。
        // 上传
        ossClient.putObject(bucketName, ossPath, new File(filePath));
        return accessPre+ossPath;
//        return ossPath;
    }

    /**
     * 使用文件流上传到指定的bucket实例
     * @param bucketName 实例名称
     * @param ossPath oss存储路径
     * @param filePath 本地文件路径
     */
    public String uploadFileInputStreamForBucket(String bucketName , String ossPath , String filePath){

        // 填写本地文件的完整路径。如果未指定本地路径，则默认从示例程序所属项目对应本地路径中上传文件流。
        InputStream inputStream = null;
        try {
            inputStream = new FileInputStream(filePath);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }
        // 填写Bucket名称和Object完整路径。Object完整路径中不能包含Bucket名称。
        uploadFileInputStreamForBucket(bucketName, ossPath, inputStream);
        return accessPre+ossPath;
//        return ossPath;
    }

    public void uploadFileInputStreamForBucket(String bucketName , String ossPath , InputStream inputStream ){
        ossClient.putObject(bucketName, ossPath, inputStream);
    }

    /**
     * 下载
     * @param ossFilePath
     * @param filePath
     */
    public void downloadFile(String ossFilePath , String filePath ){
        downloadFileForBucket(ossConfig.getBucketName() , ossFilePath , filePath);
    }
    /**
     * 下载
     * @param bucketName 实例名称
     * @param ossFilePath oss存储路径
     * @param filePath 本地文件路径
     */
    public void downloadFileForBucket(String bucketName , String ossFilePath , String filePath ){
        ossClient.getObject(new GetObjectRequest(bucketName, ossFilePath), new File(filePath));
    }

    /**
     *
     * @return
     */
    public String getOssDefaultPath(){
        LocalDateTime now = LocalDateTime.now();
        String url =
                now.getYear()+"/"+
                        now.getMonth()+"/"+
                        now.getDayOfMonth()+"/"+
                        now.getHour()+"/"+
                        now.getMinute()+"/";
        return url;
    }

    public String getOssFilePath(String filePath){
        String fileSuf = filePath.substring(filePath.indexOf(".") + 1);
        return getOssDefaultPath() + UUID.randomUUID().toString() + "." + fileSuf;
    }
}
